chore: prepare GoodBuddy 0.12.7 and Agent 0.11.21 releases

Set the approved Desktop and Agent versions and package the approved Chinese
and English notes without changing published release history. Keep OpenCode
pinned to 1.18.29 and require Desktop 0.12.7 before the new Agent package.

Align both feature lists and affected design documents with reference-image
editing, inherited expert work modes, preview boundaries, and remaining
release acceptance. Application navigation remains design-only. No LoongArch
preview is planned for this release; Agent publication remains non-Latest.

The first candidate full run exposed a browser test clicking Send before it
was enabled. Wait for startup readiness using the existing test convention;
production code is unchanged by this release-preparation commit.

Validation: final full suite 3597 passed, 0 failed, 61 skipped across 338 files.
Typecheck, lint, bilingual release-note validation, version consistency,
unchanged historical notes, whitespace and relative-link checks passed.
No additional real model calls, local production builds, pushes or tags.
Concurrent navigation, workbar and roadmap design edits are not included.

docs/features/direct-model-agent/progress.md

@@ -24,7 +24,9 @@
 - [x] `ModelAgentRuntime` 已有多轮工具循环、取消、上下文压缩和有界结果。
 - [x] DeepSeek Harness 已按 Windows PowerShell、macOS/Linux Bash 注册原生 Shell。
 - [x] OpenCode 和 Continue 使用各自原生执行工具。
-- [x] 当前专家 Subagent 是只读协作流程，不是直连模型可调用的编程工具。
+- [x] 专家协作与直连模型可调用的编程工具是不同入口；当前专家继承父请求 Ask/Execute，
+  使用已启用本机直连模型工具并记录工具活动。模式与 authorizer 传递已由
+  `subagent-service.test.ts` 覆盖，不把该单元测试作为额外的真实模型或远程执行验收。
 - [x] Task/Job 领域文档已经明确 Subagent 不是新的顶层 Task 或 Conversation。
 - [x] 当前跨平台进程树清理已经覆盖 Windows `taskkill /T /F` 和 POSIX 进程组。